bindings: Add validation for enum Sequence or Array

Source/bindings/tests/results/core/V8TestDictionary.cpp

Index: Source/bindings/tests/results/core/V8TestDictionary.cpp
diff --git a/Source/bindings/tests/results/core/V8TestDictionary.cpp b/Source/bindings/tests/results/core/V8TestDictionary.cpp
index 62cd43d3da1ece5601f0e2149585d5b383255f6e..bd1af48bf46c015d331034c0b5ca0afed744dd33 100644
--- a/Source/bindings/tests/results/core/V8TestDictionary.cpp
+++ b/Source/bindings/tests/results/core/V8TestDictionary.cpp
@@ -130,9 +130,14 @@ void V8TestDictionary::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value
         V8StringResource<> enumMember = enumMemberValue;
         if (!enumMember.prepare(exceptionState))
             return;
-        String string = enumMember;
-        if (!(string == "" || string == "EnumValue1" || string == "EnumValue2" || string == "EnumValue3")) {
-            exceptionState.throwTypeError("member enumMember ('" + string + "') is not a valid enum value.");
+        static const char* validValues[] = {
+            "",
+            "EnumValue1",
+            "EnumValue2",
+            "EnumValue3",
+        };
+        if (!isValidEnum(enumMember, validValues, WTF_ARRAY_LENGTH(validValues))) {
+            exceptionState.throwTypeError("member enumMember ('" + toCoreString(isolate, enumMemberValue) + "') is not a valid enum value.");

[haraken, 2015/04/01 00:29:45]

Can we just use enumMember (not toCoreString(enumMemberValue))?

[bashi, 2015/04/01 00:50:57]

I don't think we want to do it because it requires two branches in Jinja
templates. A member may be a string, but also can be a vector. That's why I use
toCoreString here.

Added a sequence<TestEnum> in TestDictionary.idl to explain this. (I thought I
added it, but it seems I didn't...)

             return;
         }
         impl.setEnumMember(enumMember);